REMINDER - High Energy Physics Seminar TODAY(De Angelis)

[HECAP - Margherita Di Giovannantonio]

*_HIGH ENERGY PHYSICS SEMINARS_*
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*_!! Please note unusual venue and time !!

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*Tuesday, 15 October* 2024, at *14:00* - Leonardo Building Infolab***- 
https://indico.ictp.it/event/10796/*
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Stefano De Angelis (IPhT, Saclay)



*“Scattering Amplitudes for Continuous Spin Particles **"* _
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_Abstract:
_Continuous Spin Particles (CSPs) arise naturally from Wigner's 
classification of the unitary representations of the Poincare group. 
Conversely, defining an interacting (quantum field) theory for these 
particles is notoriously difficult. In my talk, I will move away from 
trying to find a Lagrangian/field-theoretic description for CSPs. 
Rather, I will bootstrap the S-matrix elements describing the scattering 
and/or the exchange of CSPs from very generic constraints dictated by 
Poincare invariance, little-group covariance, analyticity and unitarity. 
I will mention a few examples, highlighting the essential features of 
CSP scattering amplitudes and open problems.
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*To join via Zoom*:
https://zoom.us/j/98907084505

Meeting ID:  989 0708 4505
Passcode:  316223

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